I was under some doubt - is it worth to open new topic or include Puschkinias under Scilla, but seeing topic dedicated to only Fritillaria davidii, I asked myself =- why not. And there it is.
Puschkinias are very widespread and generally there is little variation in various stocks. Mostly they are bluish toned, but occasionally some white specimens can be seen and one was selected in Armenia by Arnis Seisums and named SNOWDRIFT. They are generally distributed at quite high altitudes in Caucasus and entering E Turkey and W Iran. As higher they grow as smaller becomes flower spike and this feature is partly kept in cultivation, too. Here are pictures of various gatherings and I attached altitude at the picture.
CMGG-028 comes from Georgia
next is from Czug pass in NE Turkey
Follows three from Iran (WHIR)